I've been contacted by email from a company called "VIDA". This company is selling printed clothing items. Their contract says you give them "exclusive rights", and you receive a 10% payout per sale. Do not give any online company exclusive rights to your artwork.
10% is an absolute insult. Beware.
I wrote this people back and expressed my opinions of their offerings. They replied back saying they removed me from their mailing list but it may take a week to remove! These idiots added me to their spam email! I never authorized anything like this with these people. Watch out-